add test coverage through get_object

lcviz/tests/test_parser.py

@@ -3,7 +3,7 @@
 from glue.core.roi import XRangeROI, YRangeROI
 from astropy.time import Time
 from astropy.utils.data import download_file
-from lightkurve import LightCurve, search_targetpixelfile
+from lightkurve import LightCurve, KeplerTargetPixelFile, search_targetpixelfile
 from lightkurve.io import kepler
 import astropy.units as u
 
@@ -58,6 +58,7 @@ def test_kepler_tpf_via_lightkurve(helper):
                                  quarter=10).download()
     helper.load_data(tpf)
     assert helper.get_data().shape == (4447, 4, 6)  # (time, x, y)
+    assert helper.app.data_collection[0].get_object(cls=KeplerTargetPixelFile).shape == (4447, 4, 6)
 
 
 def test_synthetic_lc(helper):

lcviz/utils.py

@@ -1,6 +1,7 @@
 from glue.config import data_translator
 from glue.core import Data, Subset
 from ipyvue import watch
+import warnings
 
 import os
 from glue.core.coordinates import Coordinates
@@ -438,7 +439,10 @@ def to_object(self, data_or_subset):
                 values = values.value
             setattr(tpf_factory, attr, values)
 
-        tpf = tpf_factory.get_tpf()
+        with warnings.catch_warnings():
+            warnings.filterwarnings('ignore',
+                                    message='Could not detect filetype as TESSTargetPixelFile or KeplerTargetPixelFile, returning generic TargetPixelFile instead.')  # noqa
+            tpf = tpf_factory.get_tpf()
 
         for attr in self.meta_attrs:
             # if this attribute exists and can be set: